A + c = 824 represents number of tickets to sell
20a + 12c = 13,344 represents cost of each type of ticket
multiply equation 1 by -12 to cancel the variable 'c' and solve for 'a'
-12(a + c = 824)
-12a - 12c = - 9888
20a + 12c = 13,344 add equations together
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8a = 3456 divide both sides by 8
a = 432
To find children's tickets substitute adult numbers back into equation 1.
a + c = 824
432 + c = 824
subtract 432 from both sides
c = 392
adult 432, children 392
Well, since a is Susan’s current age, we would add three to a to get her age in three years
So our expression would be:
a + 3
Answer: 6f (3+5x)
Step-by-step explanation:
18f + 30fx by its gcf
2 apples in the partly filled tray, 11 tents are needed for all the children
Answer: −
3
X
−
x
−
4
Step-by-step explanation: